Rev 2147 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 2147 | Rev 2149 | ||
|---|---|---|---|
| Line 75... | Line 75... | ||
| 75 | */ |
75 | */ |
| 76 | unsigned dummy : 32; |
76 | unsigned dummy : 32; |
| 77 | } pte_t; |
77 | } pte_t; |
| 78 | 78 | ||
| 79 | typedef struct { |
79 | typedef struct { |
| 80 | unsigned destriptor_type : 2; |
80 | unsigned descriptor_type : 2; |
| 81 | unsigned machine_depend : 3; // Alf: ???? v Architecture previev neni vyznam definovan |
81 | unsigned machine_depend : 3; // Alf: ???? v Architecture previev neni vyznam definovan |
| 82 | unsigned domain : 4; |
82 | unsigned domain : 4; |
| 83 | unsigned should_be_zero : 1: |
83 | unsigned should_be_zero : 1; |
| 84 | unsigned coarse_table_addr : 22; |
84 | unsigned coarse_table_addr : 22; |
| 85 | } __attribute__ ((packed)) pte_level0_t; |
85 | } __attribute__ ((packed)) pte_level0_t; |
| 86 | 86 | ||
| 87 | //TODO Alf: Comments |
87 | //TODO Alf: Comments |
| 88 | typedef struct { |
88 | typedef struct { |
| 89 | unsigned destriptor_type : 2; |
89 | unsigned descriptor_type : 2; |
| 90 | unsigned bufferable : 1; |
90 | unsigned bufferable : 1; |
| 91 | unsigned cacheable : 1; |
91 | unsigned cacheable : 1; |
| 92 | unsigned access_permission_0 : 2; |
92 | unsigned access_permission_0 : 2; |
| 93 | unsigned access_permission_1 : 2; |
93 | unsigned access_permission_1 : 2; |
| 94 | unsigned access_permission_2 : 2; |
94 | unsigned access_permission_2 : 2; |
| 95 | unsigned access_permission_3 : 2; |
95 | unsigned access_permission_3 : 2; |
| 96 | unsigned frame_base_addr : 20; |
96 | unsigned frame_base_addr : 20; |
| 97 | } __attribute__ ((packed)) pte__level1_t; |
97 | } __attribute__ ((packed)) pte_level1_t; |
| 98 | 98 | ||
| 99 | /// Page table level 1 access permission constants |
99 | /// Page table level 1 access permission constants |
| 100 | /// User no acess, kernel no access |
100 | /// User no acess, kernel no access |
| 101 | #define pte_ap_user_no_kernel_no 0 |
101 | #define pte_ap_user_no_kernel_no 0 |
| 102 | /// User no acess, kernel read/write |
102 | /// User no acess, kernel read/write |